<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <div>
    <span style="color: red">{{err_msg}}</span>
  </div>
    <div>
        <a href="/">去首页</a>
    </div>
</body>
</html>